Gibson has a great piece on eleven examples where the original cover art submitted to a record label by a band were banned at some point in their existence (and no, “Smell the Glove” was not included). Some of the examples I am familiar with but some of them border on the ridiculous, I mean banning a Mamas and Papas record because of a toilet? I admit though that the Lynyrd Skynard cover is just eerie…
Never the less, this is an interesting trip down rock history’s back lane. You can get the full article at A Rough Guide to Banned Cover Art.